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Reduced the CPU usage of the sent block selector algorithm

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This commit is contained in:
Perttu Ahola 2011-05-31 00:15:43 +03:00
parent 16fdb42590
commit 223b379348
11 changed files with 355 additions and 55 deletions
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131
src/profiler.h Normal file
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/*
Minetest-c55
Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef PROFILER_HEADER
#define PROFILER_HEADER
#include "common_irrlicht.h"
#include <string>
#include "utility.h"
#include <jmutex.h>
#include <jmutexautolock.h>
/*
Time profiler
*/
class Profiler
{
public:
Profiler()
{
m_mutex.Init();
}
void add(const std::string &name, u32 duration)
{
JMutexAutoLock lock(m_mutex);
core::map<std::string, u32>::Node *n = m_data.find(name);
if(n == NULL)
{
m_data[name] = duration;
}
else
{
n->setValue(n->getValue()+duration);
}
}
void clear()
{
JMutexAutoLock lock(m_mutex);
for(core::map<std::string, u32>::Iterator
i = m_data.getIterator();
i.atEnd() == false; i++)
{
i.getNode()->setValue(0);
}
}
void print(std::ostream &o)
{
JMutexAutoLock lock(m_mutex);
for(core::map<std::string, u32>::Iterator
i = m_data.getIterator();
i.atEnd() == false; i++)
{
std::string name = i.getNode()->getKey();
o<<name<<": ";
s32 clampsize = 40;
s32 space = clampsize-name.size();
for(s32 j=0; j<space; j++)
{
if(j%2 == 0 && j < space - 1)
o<<"-";
else
o<<" ";
}
o<<i.getNode()->getValue();
o<<std::endl;
}
}
private:
JMutex m_mutex;
core::map<std::string, u32> m_data;
};
class ScopeProfiler
{
public:
ScopeProfiler(Profiler *profiler, const std::string &name):
m_profiler(profiler),
m_name(name),
m_timer(NULL)
{
if(m_profiler)
m_timer = new TimeTaker(m_name.c_str());
}
// name is copied
ScopeProfiler(Profiler *profiler, const char *name):
m_profiler(profiler),
m_name(name),
m_timer(NULL)
{
if(m_profiler)
m_timer = new TimeTaker(m_name.c_str());
}
~ScopeProfiler()
{
if(m_timer)
{
u32 duration = m_timer->stop(true);
if(m_profiler)
m_profiler->add(m_name, duration);
delete m_timer;
}
}
private:
Profiler *m_profiler;
std::string m_name;
TimeTaker *m_timer;
};
#endif